Chicago’s 30,000 public school teachers had little time to celebrate their return to class as attention shifted to how the third-largest U.S. city will pay for the deal that ended their first strike in a quarter century -- and how soon some of those educators will lose their jobs.

Mortgage-backed securities holders are pushing for a resolution of a 50-state probe of foreclosure practices, attorneys general in Iowa and Arizona said as talks with lenders and servicers expand to include investors.

Google Inc. ’s collection of data via Wi-Fi networks was the subject of a conference call among law enforcement officials from 30 U.S. states, according to Connecticut Attorney General Richard Blumenthal .